Chilled-mirror hygrometer

{
  "id": "MLC-T-MET-004275",
  "term": "Chilled-mirror hygrometer",
  "field": "Meteorology and atmospheric science",
  "definition": "An instrument used to measure the dew point or frost point temperature of a gas, which is a direct indicator of its absolute humidity. It operates by cooling a polished mirror surface until condensation or frost forms, at which point the mirror's temperature is measured. This method provides highly accurate and precise humidity measurements.",
  "url": "https://mlchart.com/terminology/meteorology/chilled-mirror-hygrometer/"
}